2516265438 has 32 divisors (see below), whose sum is σ = 5472585504. Its totient is φ = 768079872.

The previous prime is 2516265413. The next prime is 2516265449. The reversal of 2516265438 is 8345626152.

It is a self number, because there is not a number n which added to its sum of digits gives 2516265438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329595 + ... + 337142.

It is an arithmetic number, because the mean of its divisors is an integer number (171018297).

Almost surely, 2^2516265438 is an apocalyptic number.

2516265438 is an abundant number, since it is smaller than the sum of its proper divisors (2956320066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2516265438 is a wasteful number, since it uses less digits than its factorization.

2516265438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666796.

The product of its digits is 345600, while the sum is 42.

The square root of 2516265438 is about 50162.3906726942. The cubic root of 2516265438 is about 1360.1458605813.

The spelling of 2516265438 in words is "two billion, five hundred sixteen million, two hundred sixty-five thousand, four hundred thirty-eight".